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In this paper, three different technologies were used to measure lithium battery charging behaviors. Graupner ultra duo 60 plus charger, EVM BQ27546, and LTC4054 chargers were used to compare the functionality of Li-Ion, LiFePO4, and Li-Po batteries. Charging at different C-rates was analyzed. Logged data from the chargers give information about the batteries charging characteristics, e.g., voltag...Show More
Guidance for an objective evaluation of lithium-based energy storage technologies by a potential user for any stationary application is provided in this document. IEEE Std 1679-2020, IEEE Recommended Practice for the Characterization and Evaluation of Energy Storage Technologies in Stationary Applications is to be used in conjunction with this document. Secondary (rechargeable) electro-chemistries...Show More
Guidance for an objective evaluation of lithium-based energy storage technologies by a potential user for any stationary application is provided in this document. IEEE Std 1679-2020, IEEE Recommended Practice for the Characterization and Evaluation of Energy Storage Technologies in Stationary Applications is to be used in conjunction with this document. Secondary (rechargeable) electro-chemistries...Show More
Battery Management system is still very difficult task for the electric vehicle (EV). Lithium-ion (Li-ion) batteries have proved to be the battery of electric vehicle manufactures because of its high charge density and low weight. In EVs, essential thing is a smart battery management system (BMS). The Li-ion battery is highly unstable in nature so it is challenging task to estimate accurate state ...Show More
In the field of lithium-ion battery applications, in order to meet the specific voltage usage requirements, battery packs are usually connected in series structure. However, the traditional series-connected Buck-Boost equalization topology suffers from slow equalization speed and low efficiency. In this paper, we improve the efficiency of equalization by improving the traditional series topology a...Show More
With the characteristics of high power density, high energy density and flexible configuration, electrochemical energy storage power station is widely used in power generation, transmission, distribution and power consumption, which effectively solves the problem of time and space distribution of electric energy. Based on the Ragone curve of energy storage battery, the design method of energy stor...Show More
In order to study the inhibitory effect of inert gas on the combustion explosion of power lithium-ion battery, N2 and CO2 were used as the suppression gas medium for the lithium battery fire suppression test. Study on lithium battery fire test in air, N2, CO2 gas environment with SOC of 0%, 50% and 100% respectively. Studies have shown that both N2 and CO2 can inhibit the combustion and explosion ...Show More
For power systems with high proportion of renewable energy, renewable energy generation stations need to have better regulation abilities and support for the grid’s frequency and voltage. Renewable energy generation stations need energy storage system (ESS) to help them meet these needs. Vanadium flow batteries and lithium-ion batteries are both electrochemical energy storage technologies that hav...Show More

Modeling and SOC Estimation of Lithium Iron Phosphate Battery Considering Capacity Loss

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Protection and Control of Modern Power Systems
Year: 2018 | Volume: 3, Issue: 1 | Journal Article |
Cited by: Papers (5)
Modeling and state of charge (SOC) estimation of Lithium cells are crucial techniques of the lithium battery management system. The modeling is extremely complicated as the operating status of lithium battery is affected by temperature, current, cycle number, discharge depth and other factors. This paper studies the modeling of lithium iron phosphate battery based on the Thevenin's equivalent circ...Show More

Modeling and SOC Estimation of Lithium Iron Phosphate Battery Considering Capacity Loss

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Year: 2018 | Volume: 3, Issue: 1 | Journal Article |
It is important to study the identification of fault types in lithium-ion battery energy storage station for energy storage safety. In grid-level energy storage, the fault types that trigger thermal runaway (TR) of lithium batteries mainly include thermal abuse and electrical abuse. This paper proposes a method to identify the fault types of lithium battery energy storage station based on thermal ...Show More
Through the analysis between the working principle of lithium-ion batteries and lead-acid batteries, and based on the research status of lithium-ion batteries at home and abroad, the safety performance of lithium-ion batteries for the submarine is analyzed. The problems faced by conventional submarines equipped with lithium-ion batteries in our country were sorted out. Basic requirements and feasi...Show More
A charging strategy is proposed to reduce the charging losses of lithium-ion batteries in electric vehicles. A first-order RC battery model is used to model the lithium battery to achieve this objective. It is found that the internal impedance of the battery varies with the battery's charging state. Therefore, a current charging strategy with variable amplitude corresponding to the change of inter...Show More
Rechargeable batteries are the elements designed to hold the charge and produce the power when connected to the load. The batteries are manufactured using active materials like lead acid, nickel cadmium and various other materials. Such batteries when connected to the load, produces output power using electrochemical oxidation-reduction reaction process. The rechargeable batteries once connected t...Show More
The unbalance phenomenon of lithium-ion batteries undercharging and the discharging condition is presented. Constant current and constant voltage controller and fuzzy controller are designed and simulated to evaluate the charging time for series-connected lithium-ion batteries. The charging methods are all evaluated and verified in the MATLAB/SIMULINK environment. The CC-CV controller and fuzzy co...Show More
Batteries are the main device in electronic devices. Batteries have developed rapidly to become the main energy source for modern vehicles, namely electric cars. Lithium-ion batteries are lithium batteries with electrolytes in gel form inside. This battery is widely found in everyday life because it has one of the best energy densities, has no memory effect, and experiences a slow loss of content ...Show More
This paper deals with the concept of a hybrid battery bank consisting of lithium and lead acid batteries. Lithium batteries offer various benefits and advantages over lead acid batteries however up-front cost is a significant difference. By using both types at the same time, the advantages of lead-acid and lithium batteries can be used at the same time. Lithium and lead acid batteries charging cha...Show More
Electric vehicles are now emerging as the alternate mode of transportation. Now, as the concerns of global warming is increasing, electric vehicles will play a vital role in maintaining an eco-friendly environment. In this, lithium ion batteries are now being opted widely because of it's charging and discharging cycle. In this study, with the help of 3 lithium ion batteries in series, we will be o...Show More
The pulsed current is considered to improve the performance of the Lithium-ion (Li-ion) battery. However, the effect of the pulsed current on Li-ion battery performances is inconclusive at present. In this paper, a battery cell was charged by applying a 0.05 Hz pulsed current. Different duty cycles, the current-rates (C-rates), and ambient temperatures were considered in order to obtain a clear im...Show More
Accurate predicting the remaining useful life of lithium-ion batteries is essential for the market of Electrical Vehicles (EVs) and the battery industry. However, diverse ageing processes, substantial battery variability, and dynamic operating circumstances are identified as main challenges for predicting the remaining useful life (RUL) of lithium-ion batteries (LIBs). This study proposes a machin...Show More
Lithium-ion power batteries are favored for their light mass, high energy density and low pollution, but repeated thermal runaway accidents have prevented the large-scale use of lithium-ion power batteries. The thermal safety of lithium-ion batteries is also receiving increasing attention. In this paper, the thermal runaway characteristics of 18650 nickel-rich lithium-ion batteries triggered by he...Show More
According to the main problems faced by the electric vehicles using lithium batteries in the application process, the paper studied the lithium battery safety, consistency, etc. Introduce the lithium battery materials technology, battery core manufacturing technology, battery combination technology, battery management system, battery performance simulation platform and other aspects of the researc...Show More
Batteries provide electrical energy to many devices from power tools to military portable equipment. The battery technology has evolved over the years which led to the creation of lithium based batteries that are equipped to face the power-demanding military devices. Battery quality is a critical issue in military applications since the portable devices use power consuming algorithms for security....Show More
Aiming at the problem of high replacement and maintenance cost of communication power battery, this paper studies the intelligent lithium iron phosphate battery hybrid system. The economic requirements of communication power supply are fully considered. For the problems of battery aging and insufficient charge and discharge in the use of communication power supply batteries, the battery management...Show More
This study designs a battery pack for a two-seater electric vehicle using lithium iron phosphate technology, to replace lead-acid gel batteries. By comparing the performance, range, and weight of both battery types through simulations and modeling, the research finds that lithium iron phosphate batteries provide better performance, longer range, and are lighter. They also maintain optimal temperat...Show More
This paper investigates the effects of temperature on the behavior of lithium-ion batteries during operation. In particular, we present the results of an experimental analysis aimed at investigating the effect on cell performance of a temperature gradient during the discharge phase. An ad-hoc experimental setup which includes an electronic load, power supply and climate chamber fully controlled th...Show More